Animal bed



FIG. 1 is a reduced top view of an animal bed;

FIG. 2 is a reduced bottom view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a left side view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an animal bed, as shown and described. 